Suction device and supporting device having the same

Abstract

A suction device includes a sucking member having a connecting body connected integrally to a flexible disc body that is disposed under an upright sleeve, a connecting member disposed in the sleeve and connected to the connecting body, and an operating rod connected pivotally to a pivot block unit on the sleeve and to the connecting member. The operating rod is operable so that an assembly of the connecting member and the connecting body is pulled upwardly, thereby forming a vacant space between a central portion of the disc body and a supporting surface to which a peripheral portion of the disc body is attached sealingly.

1. A suction device comprising;
 an upright sleeve extending in a longitudinal direction and having a through hole unit and an annular outer surface formed with a pivot block unit that is disposed adjacent to said through hole unit, said though hole unit including diametrically opposed though holes, said pivot block unit of said sleeve including two pivot blocks disposed respectively adjacent to said though holes; 
 a sucking member having a flexible disc body disposed under said sleeve and having a peripheral portion that is adapted to be attached sealingly to a supporting surface and that abuts against said sleeve, and a central portion connected integrally to said peripheral portion and adapted to be spaced apart from the supporting surface, and a connecting body connected integrally to said central portion of said disc body and extending upwardly into said sleeve; 
 a connecting member disposed in said sleeve and having a first connecting portion connected to said connecting body of said sucking member so as to allow synchronous movement of said connecting member and said connecting body of said sucking member, and a second connecting portion opposite to said first connecting portion in the longitudinal direction, said connecting member being a U-shaped rod having parallel vertical rod bodies, each of said vertical rod bodies having opposite upper and lower ends, and a horizontal rod body interconnecting said lower ends of said vertical rod bodies and extending through said connecting body of said sucking member, said horizontal rod body constituting said first connecting portion of said connecting member, said upper ends of said vertical rod bodies constituting said second connecting portion of said connecting member; and 
 an operating rod unit including a pair of operating rods, each of said pair of operating rods having a pivot end portion extending into said sleeve through a corresponding one of said through holes of said through hole unit in said sleeve and connected pivotally to a corresponding one of said upper ends of said vertical rod bodies of said U-shaped rod, an operating end portion opposite to said pivot end portion, and an intermediate fulcrum portion interconnecting said pivot end portion and said operating end portion, and connected pivotally to a corresponding one of said pivot blocks of said pivot block unit; 
 wherein said operating end portions of said operating rods of said operating rod unit are operable so as to pivot said pivot end portions of said operating rods of said operating rod unit upwardly such that an assembly of said connecting member and said connecting body of said sucking member is pulled upwardly, thereby forming a vacant space between said central portion of said disc body of said sucking member and the supporting surface. 
 
   
   
     2. The suction device as claimed in  claim 1 , wherein said sleeve further has an annular flange that extends radially and outwardly from a bottom end of said sleeve and that abuts against said peripheral portion of said disc body of said sucking member. 
   
   
     3. A supporting device adapted for an electronic device, comprising:
 a suction device including 
 an upright sleeve extending in a longitudinal direction and having a through hole unit and an annular outer surface formed with a pivot block unit that is disposed adjacent to said through hole unit, said through hole unit including diametrically opposed through holes, said pivot block unit including two pivot blocks disposed respectively adjacent to said through holes, 
 a sucking member having a flexible disc body disposed under said sleeve and having a peripheral portion that is adapted to be attached sealingly to a supporting surface and that abuts against said sleeve, and a central portion connected integrally to said peripheral portion and adapted to be spaced apart from the supporting surface, and a connecting body connected integrally to said central portion of said disc body and extending upwardly into said sleeve, 
 a connecting member disposed in said sleeve and having a first connecting portion connected to said connecting body of said sucking member so as to allow synchronous movement of said connecting member and said connecting body of said sucking member, and a second connecting portion opposite to said first connecting portion in the longitudinal direction, said connecting member being a U-shaped rod that has parallel vertical rod bodies, each of the vertical rod bodies having opposite upper and lower ends, and a horizontal rod body interconnecting said lower ends of said vertical rod bodies and extending through said connecting body of said sucking member, said horizontal rod body constituting said first connecting portion of said connecting member, said upper ends of said vertical rod bodies constituting said second connecting portion of said connecting member, and 
 an operating rod unit including a pair of operating rods, each of said operating rods having a pivot end portion extending into said sleeve through a corresponding one of said through holes of said through hole unit in said sleeve and connected pivotally to a corresponding one of said upper ends of said vertical rod bodies of said U-shaped rod, an operating end portion opposite to said pivot end portion, and an intermediate fulcrum portion interconnecting said pivot end portion and said operating end portion, and connected pivotally to a corresponding one of said pivot blocks of said pivot block unit; and 
 a supporting member having an inserting end portion inserted into an upper end of said sleeve of said suction device, and a mounting end portion adapted to be mounted with the electronic device thereon; 
 wherein said operating end portions of said operating rods of said operating rod unit are operable so as to pivot said pivot end portions of said operating rods of said operating rod unit upwardly such that an assembly of said connecting member and said connecting body of said sucking member is pulled upwardly, thereby forming a vacant space between said central portion of said disc body of said sucking member and the supporting surface. 
 
   
   
     4. The supporting device as claimed in  claim 3 , wherein said sleeve further has an annular flange that extends radially and outwardly from a bottom end of said sleeve and that abuts against said peripheral portion of said disc body of said sucking member.